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//
//   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.doris.nereids.trees.plans;

import org.apache.doris.nereids.trees.expressions.Slot;

import java.util.List;

/**
 * trait for plan that output in Asterisk does not contain all slot which could output, such as, UsingJoin.
 */
public interface DiffOutputInAsterisk extends Plan {
    @Override
    default List<Slot> getAsteriskOutput() {
        boolean outputMayDiff = false;
        for (Plan child : children()) {
            if (child instanceof DiffOutputInAsterisk) {
                outputMayDiff = true;
                break;
            }
        }
        return outputMayDiff ? getLogicalProperties().getAsteriskOutput() : getLogicalProperties().getOutput();
    }
}
